DNC chair says the idea of replacing Biden as the Democratic nominee and winning the presidential election is 'certifiably crazy'

• Calls for Biden to drop out have increased following a recent US special counsel report.
• That doesn't appear likely to happen anytime soon, especially after pushback from the DNC chair.
• He said the idea of usurping the nomination from Biden and then winning is "certifiably insane."

The chairman of the Democratic National Committee said the idea of replacing President Joe Biden as the party's candidate and winning the election in November is "certifiably crazy actually."